it is qvm-run --pass-io -u root tpl-deb-10-signal “curl --proxy http://127.0.0.1:8082/ -s https://updates.signal.org/desktop/apt/keys.asc | apt-key add -"
if so, replace it with qvm-run --pass-io -u root tpl-deb-10-signal “curl --proxy http://127.0.0.1:8082/ -s https://updates.signal.org/desktop/apt/keys.asc | gpg --dearmor | sudo tee /usr/share/keyrings/signal-archive-keyring.gpg"